Re: HEI Dist Install in a 250
Thanks for the advice and help, guys.
I did keep the yellow wire: I disconnected both ends (well I cut one but I digress), folded it back and wrapped it up with black electrical tape so it's not seen now. Neither end is connected so it's just there in case I need it.
I took it for a drive. Nice and smooth!
Stopped at a buddy's house on my drive. He's an even bigger gear head than anyone else I know. He's working on his 3rd iteration of his Ferrari 250 kit car (Fauxarri as I like to call it). Based on a 70's Datsun with a fiberglass body. The entire suspension minus the springs and struts were hand made by him. All nice billet one-off stuff. Hand-made interior designed to look like a factory 250. He's in the process of putting in a motor from a 370Z as a nod to Datsun. Used to have some datsun inline 6 in there. It's a work of art. 350hp, 2,500 lbs work of art, that is.
Anyway the man knows cars.
From his suggestions I disconnected the vac advance and plugged the port on the carb. Reset timing from 4 degrees advance to 8 degrees and reset the idle.
The engine is smoother than ever before.
All that aside (and I noticed this before I increased timing, etc), it seems to be sucking down a lot more gas. I think it has to do with my larger fuel line and/or new fuel pump (I tried to muscle the old fuel line out of the way of the new dist. and kinda, sorta, maybe messed up the connection on the old pump... probably was OK but for $20 I just replaced it rather than risk a fuel fire).
I know I can now increase the gap a bit on the spark plugs. Do you think this would help burn more of the fuel going into the combustion chamber? I know I'll probably have to back the timing back down a bit but that's OK.
I just don't want to smell like gas every time I drive it. I can tell I'm dumping more fuel. Just not enough to flood the engine. It's just a bit too much.
Maybe adjust the float down some? Other options? I'm not a carb guy but I did rebuild this one and it was working great until this.
I think leaning it out some will give me a few more ponies too...
1968 Base hardtop 250 with a P̶G̶ built 2004r
Holley 390 CFM carb
Langdon split header to a 2.5" exhaust