Edelbrock Performer RPM & Q-jet install question - Team Camaro Tech
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post #1 of 7 (permalink) Old Apr 4th, 10, 10:07 PM Thread Starter
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Edelbrock Performer RPM & Q-jet install question

Hey guys,

I looked around the forum, and couldnt find any instructions on replacing my stock 2 barrel carb and intake with a 4 barrel Q-Jet and Edelbrock Performer RPM intake. Is there a link or post with detailed instructions on how to go about this?
Also, once the new parts are all bolted on...will it all fit under a stock hood with a 1" spacer, or do I need to replace the hood for more room?
Thanks for the help on this!
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post #2 of 7 (permalink) Old Apr 4th, 10, 10:42 PM
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Re: Edelbrock Performer RPM & Q-jet install question

You don't need to change anything over, probably need a different throttle rod though.
It's a pretty strait forward change that can take under 1 hour, mark your distributor cap for easy reinstillation, and your fuel lines may need some tweaking since the carb dimensions are different.

The manifold will fit under the stock flat hood, with a 1" spacer it may with a drop base air cleaner.

The only Mustang I'd ever own is a Fender.

'68 333" Camaro
'14 5.0 Mustang
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post #3 of 7 (permalink) Old Apr 4th, 10, 11:56 PM Thread Starter
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Re: Edelbrock Performer RPM & Q-jet install question

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Originally Posted by ace's68 View Post
You don't need to change anything over, probably need a different throttle rod though.
It's a pretty strait forward change that can take under 1 hour, mark your distributor cap for easy reinstillation, and your fuel lines may need some tweaking since the carb dimensions are different.

The manifold will fit under the stock flat hood, with a 1" spacer it may with a drop base air cleaner.
Cool...thanks for the help! What tweaking would need to be done on the fuel lines? Also...anything I should know about the distrubutor cap? Or just reinstall the same way as I take it off?
Thanks again!
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post #4 of 7 (permalink) Old Apr 5th, 10, 12:43 AM
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Re: Edelbrock Performer RPM & Q-jet install question

Cap doesn't matter as long as it doesn't have the coil in the cap.
The carb fuel line will be in a different location, usually farther back, you will need to bend a new hard line, or just install rubber hose from the pump to the carb, but a hard fuel line would be much better. You could probably find a new hard fuel line on yearone for a rochester carb like you are installing, look for the ones that came off of the 350's with the q-jets.

Make sure you mark where the pointer is pointing on the distributor rotor, and don't turn the motor over with the distributor out. By marking the pointer and leaving the motor as it was makes it much easier by just having to drop the distributor back in, re install wires and fire it up.

The only Mustang I'd ever own is a Fender.

'68 333" Camaro
'14 5.0 Mustang
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post #5 of 7 (permalink) Old Apr 5th, 10, 08:34 AM Thread Starter
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Re: Edelbrock Performer RPM & Q-jet install question

Quote:
Originally Posted by ace's68 View Post
Cap doesn't matter as long as it doesn't have the coil in the cap.
The carb fuel line will be in a different location, usually farther back, you will need to bend a new hard line, or just install rubber hose from the pump to the carb, but a hard fuel line would be much better. You could probably find a new hard fuel line on yearone for a rochester carb like you are installing, look for the ones that came off of the 350's with the q-jets.

Make sure you mark where the pointer is pointing on the distributor rotor, and don't turn the motor over with the distributor out. By marking the pointer and leaving the motor as it was makes it much easier by just having to drop the distributor back in, re install wires and fire it up.
Thanks once again!! So...for the hard fuel line...is this what I need?

http://www.yearone.com/serverfiles/f...line&SM=1&SC=8

Thanks for ALL the help!
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post #6 of 7 (permalink) Old Apr 5th, 10, 10:06 PM
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Re: Edelbrock Performer RPM & Q-jet install question

i'l assume that you are using an RPM qjet manifold, otherwise you will need an adapter and it won't make for an ideal matchup.
for the fuel line, head to a junkyard and get a fuel line off a 70's or 80's small block powered car or truck with a q jet and the "big" fuel pump- if you are using a stock fuel pump, the hard line will fit almost perfectly.

you don't plan sincerity.
you have to make it up on the spot.

wanna hear about 20 years ago when i was too smart to know any better?
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post #7 of 7 (permalink) Old Apr 5th, 10, 11:36 PM
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Re: Edelbrock Performer RPM & Q-jet install question

Quote:
Originally Posted by brewcity View Post
Hey guys,
Also, once the new parts are all bolted on...will it all fit under a stock hood with a 1" spacer, or do I need to replace the hood for more room?
Thanks for the help on this!
What kind of stock hood do you have and what year? Original motor mounts? I have a performer RPM intake and carb on in my 68 with a flat (stock) hood. I think the carb is about the same height as a q-jet and I could not use a 1" spacer. I don't really like droped base air cleaners either as having the air go up and then back down doesn't seem like a great idea. I have a 1 1/2" tall air cleaner element and flat base and have about 1/2" room to spare above the top of the air cleaner.

68 RS Coupe 355/350 TH, Detroit Speed, Hotchkis, Vintage Air, 8.5" 3.42 posi 10-bolt, MagnaFlow 2 1/2" exhaust, etc.

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