Joined
·
180 Posts
Hi Guys ,
Just wanted to get a few opinions on the current cam I have in my engine. I took this engine out of my old car which was 1200 pounds heavier than the 68 Firebird I have.
The engine is a 406 with the follwing -
5.7" rods
Forged flat tops 9.85 : 1
Dart Sportsman 2's with mild porting
Performer RPM intake match ported to the heads
830 Holley
MSD dizzy
1&3/4" 4 into 1 headers , 3" collector
2&1/2" exhaust into an x pipe into Aero chambers with no tail pipes
Cam - 268 advertised duration , 238 duration at 50.
495 lift on the intake & exhaust
intake centre line 106
lobe separation 110
intake opens 28 , intake closes 60
exhaust opens 68 , exhaust closes 20
3000 RPM stall
Turbo 400
3.73 12 bolt posi
26" tall tyres
As I wrote earlier this cam was set up in a much heavier car than what I have now & I would like to see if you guys reckon it is fairly small for the rest of the combo now that I have a much lighter car ? What do you guys recommend , I would like to stick with a solid flat tappet !
Just wanted to get a few opinions on the current cam I have in my engine. I took this engine out of my old car which was 1200 pounds heavier than the 68 Firebird I have.
The engine is a 406 with the follwing -
5.7" rods
Forged flat tops 9.85 : 1
Dart Sportsman 2's with mild porting
Performer RPM intake match ported to the heads
830 Holley
MSD dizzy
1&3/4" 4 into 1 headers , 3" collector
2&1/2" exhaust into an x pipe into Aero chambers with no tail pipes
Cam - 268 advertised duration , 238 duration at 50.
495 lift on the intake & exhaust
intake centre line 106
lobe separation 110
intake opens 28 , intake closes 60
exhaust opens 68 , exhaust closes 20
3000 RPM stall
Turbo 400
3.73 12 bolt posi
26" tall tyres
As I wrote earlier this cam was set up in a much heavier car than what I have now & I would like to see if you guys reckon it is fairly small for the rest of the combo now that I have a much lighter car ? What do you guys recommend , I would like to stick with a solid flat tappet !