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small block m1 ?? #977966 04/22/11 09:10 AM 04/22/11 09:10 AM
Joined: Jan 2003 Posts: 538 PA M maxwedge1 OP mopar
maxwedge1 OP mopar M Joined: Jan 2003 Posts: 538 PA	do all small block m1 single planes have the spreadbore opening? the 1 ive seen and pics have dual bolt pattern and spreadbore plenum opening. if so is there any mismatch using holley carb?

Re: small block m1 ?? [Re: maxwedge1] #977967 04/22/11 10:32 AM 04/22/11 10:32 AM
Joined: Aug 2006 Posts: 1,349 warfordsburg, PA dirt pro stock
dirt pro stock Joined: Aug 2006 Posts: 1,349 warfordsburg, PA	i got my M1 for my 360 in 1999 and i run a 750 holley 4150, hope this helps

Re: small block m1 ?? [Re: maxwedge1] #977968 04/22/11 10:36 AM 04/22/11 10:36 AM
Joined: Jan 2003 Posts: 27,471 So Cal autoxcuda Too Many Posts
autoxcuda Too Many Posts Joined: Jan 2003 Posts: 27,471 So Cal	Quote: do all small block m1 single planes have the spreadbore opening? the 1 ive seen and pics have dual bolt pattern and spreadbore plenum opening. if so is there any mismatch using holley carb? Yes. You can change it though. We used Moroso A/B expoxy. 6597150-12_22_10Sm2.JPG (58 downloads) Last edited by autoxcuda; 04/22/11 10:40 AM.

Re: small block m1 ?? [Re: autoxcuda] #977969 04/22/11 07:22 PM 04/22/11 07:22 PM
Joined: Aug 2006 Posts: 1,349 warfordsburg, PA dirt pro stock
dirt pro stock Joined: Aug 2006 Posts: 1,349 warfordsburg, PA	i was pretty sure mine had a different hole that was more square. i can look later since i have the carb off now. i dont really pay much attention though so i could be wrong. what ever it is its been that way for over 10 years now and i have been running it.

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