I am redoing my 302 engine out of my 1971 mustang and i want to switch from the 2bbrl carb and intak to a 4bbrl carb and intake, but i need some suggestions on which ones will work the best, I am looking for more power out of this, any suggestions would be great.
thanks

 

if it's a street driven car then any combination opf those will be good:
Holley street avenger carb or edelbrocks carb no more than 600cfm
edelbrock perfomer intake (pn 2121) or weiand action+ intake (pn 8124)
supposedly for a stret driven engine with automatic you'd prefer a vacuum secondary carb and for a manual with extreme gearing rather a double pumper

there might be better options but this seems to be working great on otherwise stock 302s


kalli

 

I agree. I just built a 302 with an Edelbrock performer and a Holley Street Avenger It starts and runs well, though it hasn't been in use enough to judge things like economy, cold-start capabilities, etc.

bmaytum

 

Yes, for street use with a short cam, I would go no further than a Performer or the Weiand equivalent. What would be better yet would be an old Performer 289. It has smaller runners and less volume giving you a little better low RPM response. I have one on my 289 and will reuse it when I build my 302.

I saw a Performer 289 on ebay the other day.

 

Interesting to hear. When start making the Perf 289 and when did they stop? That's what I have on my car.

 

I have no idea of the dates. I have one that was on my car when I bought it. If you have a mild cammed 289 or 302, or even a 347 for that matter, it is a good piece to have.

In the 347 it will help build lots of off idle torque at the expense of the high end. On the smaller engines, however, it will not hurt the high end a measurable amount.

 

Thanks

 

BTW, my car has been off the road since 90, so they were at least made in the mid to late 80s.