Need advice on Holley 2 bbl.

[bronco_46254]

I'm tired of the 2150 and its worn butterfly shaft causing me idles that are approximate at best. Its a crap shoot between 650 and 1100 RPM and any stop light even with heavy duty return springs. SO...I would like to put on a Holley 2-bbl from Summit but have some questions before I buy one for my stock '75 302:

1. 350 or 500 cfm. Summit lists both, but with a completely stock 302, which is correct?

2. Is is a direct bolt on? The base of the 2150 looks similar to a holley 2-bbl, but the Ford base plate has to cover the emissions port in the manifold.

3. Will the throttle and kickdown linkage hook directly up? They come with Kickdown and universal linkage, so it looks to me like it will.

4. Will my Air Cleaner fit under the hood? I have a chrome low profle open element from JBG and it just barely touches the hood with the 2150.

5. Are stock jets sufficient? I know they come somewhat dialed in, but if I should do an immediate change, what jet size do I need to have on hand? Again, completely stock '75 302

Thanks everyone!! Love the board and more importanty, my Bronco!!

Chris

 

[72_EB]

1. 350 or 500 cfm. Summit lists both, but with a completely stock 302, which is correct?
I've got a 4412 which is 500 cfm and like on my stock motor.

2. Is is a direct bolt on? The base of the 2150 looks similar to a holley 2-bbl, but the Ford base plate has to cover the emissions port in the manifold.
Are you keeping you emissions? I didn't it, it works without. I might have added some spacers, I can look.

3. Will the throttle and kickdown linkage hook directly up? They come with Kickdown and universal linkage, so it looks to me like it will. Yep, mine did no problem.

4. Will my Air Cleaner fit under the hood? I have a chrome low profle open element from JBG and it just barely touches the hood with the 2150.
Stock cleaner will work, I've also used a Edelbrock Pro Flo which drops down, and a 6 inch tiny filter. It's tight, but I bet your low profile will work.

5. Are stock jets sufficient? I know they come somewhat dialed in, but if I should do an immediate change, what jet size do I need to have on hand? Again, completely stock '75 302
Didn't mess with my jets. I think the 4412 comes somewhat dialed in.

Hope this helps. Fairly reliable street carb. Offroad is moderate.

 

[bronco_46254]

What did you use for a fuel inlet?? It doesnt come with any fitings, and I need to get her up and running soon....

Also, did your milege take a nose dive??

Was the ball stud for the Ford linkage included? Mine didnt have one

 

[72_EB]

[quote author=bronco_46254 link=board=5;threadid=17152;start=0#msg133700 date=1053046539]
What did you use for a fuel inlet?? It doesnt come with any fitings, and I need to get her up and running soon....

Cut and flared my own from brake/fuel line stock.


Also, did your milege take a nose dive??

Carb was always on there, so it has always been pretty crummy



Was the ball stud for the Ford linkage included? Mine didnt have one

Which linkage? Not sure what has a ball stud on mine? Might be something different

[/quote]

 

[bronco_46254]

Was your Coil in the way?? I almost have mine ready to go, but I cant get the fuel inlet done since the coil is in the way of the fuel inlet. I hate the side hung part of the Holley!!!!

 

[72_EB]

[quote author=bronco_46254 link=board=5;threadid=17152;start=0#msg134060 date=1053135746]
Was your Coil in the way?? I almost have mine ready to go, but I cant get the fuel inlet done since the coil is in the way of the fuel inlet. I hate the side hung part of the Holley!!!!
[/quote]

Yeah, not much room there. I moved mine along with the bracket in front of the freeze plug on the driver's side cylinder head. Stole the idea from someone at a Mustang show. I'd take a picture of mine, but the heads are off right now See ya at Attica when I get it going again.