• Welcome Visitor! Please take a few seconds and Register for our forum. Even if you don't want to post, you can still 'Like' and react to posts.

Offy intake question


The_Dealer

Well-Known Member
Joined
Jun 12, 2010
Messages
1,543
City
Macon, GA
Vehicle Year
1985
Transmission
Automatic
im thinking about getting a 2bbl holley 500cfm off my buddy for trade of some old jeep parts, and im thinking its going to be too big of a carb for my motor. is there anyway i could jet it down and use it on my 2.8? if so what jets would i need to go with? also what if i went with an offy intake and a mild cam, and get headers to allow it to breath better, he had it on a 2.8 before but said when u stomp it, it wanted to die out, but if u eased on it, the thing would haul ass. i just want more power, i even found a place u can buy ported and polished heads
 
The trick with a 2 barrel carb to make it smaller is to adjust the throttle linkage to the point where the engine WILL NOT stumble when the pedal is floored. What makes the stumble is too much air going too slowly thru the carb to suck out fuel. Carbs NEED velocity to work.
So it you limit the opening to about 1/2 way at WOT and it gets along well then make another small adjustment to open it a bit more. The first time it stumbles go back to the last setting.
I wouldn't do it but if I did that's the method. A TOO SMALL carb is always better than a too large one. Makes the drivability better.
Big JIm
 
Can't help on the carb, but where did you find P&P heads?
 
Sure it's always Ok to drill and tap a intake manifold.
Big JIm
 

Sponsored Ad


Sponsored Ad

TRS Events

Member & Vendor Upgrades

For a small yearly donation, you can support this forum and receive a 'Supporting Member' banner, or become a 'Supporting Vendor' and promote your products here. Click the banner to find out how.

Latest posts

Recently Featured

Want to see your truck here? Share your photos and details in the forum.

Ranger Adventure Video

TRS Merchandise

Follow TRS On Instagram

TRS Sponsors


Sponsored Ad


Sponsored Ad


Amazon Deals

Sponsored Ad

Back
Top