Hello all, I would appreciate any advice or direction about a carb for my drive train.
I have a 69 Pontiac 400 #16 heads, stock intake, .030, that was rebuilt in 1998 by a shop that used a basic engine rebuild kit with dished pistons. Its been a while but i think i remember the shop saying that the compression would now be around 8.5:1?, dunno. Anyway, the intent was to replace the tired stock 2 bbl 350/ TH400 in my LeMans convertible. The engine sat bagged in my garage until 2004 at which time the upper valve train was replaced with roller rockers and an XE262h cam was installed. (stock 400 exhaust manifolds), it was bagged and has been sitting in the garage, never fired, waiting to be installed. This time though I plan to convert the car to a 4 speed and replace the differential with a posi. (currently an open 2.78:1)? The 4 speed i have now is a fresh M21 but will probably swap it out with an M20 at some point in the future. I don't have plans to race the car but I do want it to have a little pep while I row through the gears around town. Mileage isn't too much of a concern as it won't be a daily driver. My question is which carb would be best to use with this setup and with what ratio in the rear?
I currently have two quadrajets on hand; a 07044513 which is in considerably better condition than the other one, a 7042251 which was rebuilt by a friend who couldn't get it to run right so he gave it to me. I'm not attached to either one and would consider using a better choice based on recommendations from this forum.
thanks in advance.
P.S. I have ordered the carb book.
