| Re: carb swap problems HELP /more info |  |  | |
| Re: Re: carb swap problems HELP /more info -- sam | Post Reply | Top of thread | Maverick Message Board |
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Posted by: Ken Merring 02/17/2002, 00:58:11 |
first car is a 77 302 paower brakes ( found vacuum from the intake manifold for that) automatic I had on hose that went to the pcv valve. one to the distributer and one from the intake manifold to the choke let off... I also has a inch and a half plarte under the carb that has a hose that runs under the car but doesn't seem to be connected to anything.... removed that plate and there is the intake from the carb and a small oblong 1/2imch by 1+1/2inck slot. this had a home brew foil 1/64inch gasket that blocked it ... the adapter plate would not cover this slot so i cut a gasket 1/2inck thick to look likethe one that was in the adapter and put a gasket on ither side of it. then i mounted the adapter (covering the small slot) and mounted the carb. intake manifold was 2 bbl i bought a four bbl performer 500 cfm.... then i conected the linkage using the adapter as i have a kickdown for automatic trans,, started the car it reved real high .. then back fired and started fire i sut it off fire went out ... tried again same result... I have the vacuum advance on the incorrect side so i will be changeing that (thanks ken) any help is appriciated.
.............................. The plate you are referring to is an exhaust gas recirculation part and is apparently without the vacuum control valve that it normally has. I would recomend strongly that you obtain a 4 barrel intake manifold to replace the 2 barrel unit that is now on the engine. You will relieve yourself of a lot of problems and get all the performance that the new carb will allow. 4 barrel into a 2 barrel manifold never works much better than a 2 barrel. There is little gain in total airflow. New factory iron manifolds can be obtained for about $50 + shipping if you don't want to go to an alum. units at around 140 +/-. Until this is cleared, I don't know how I can be of more help so that you end up with a decent running engine. |
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