Quote from toffeJust talked to Craig and he had the vintage Paxtons at the price mentioned here.
He also recommended me a Holley 650 DP to further improve the performance.
Can anyone give me an advice wherever I should buy the 650 or do the required mods to the original carb?
it saves a lot of grief to buy a carb from C. Conley already tested and ready to go. Another thing, if you have an original carb, it's worth over a grand as is. If you modify it to work well with a Paxton, just for starters that will require you to mill off the choke tower & there goes all the date codes, etc & the value will plummet to that of 10 lb door stop.
Carbs with choke towers intact will fit under the Paxton enclosure, but they don't work nearly as well as a no-tower carb.
I've tried it both ways, and am now using a Holley 650 DP that has no choke tower.
http://www.summitracing.com/parts/HLY-0-82651/
It works fine, I also am using a (self-modified) marine spark arrester which serves as a air diffuser. It makes a big difference, and let me take out a lot of jetting & it improved responsiveness.
http://www.cpperformance.com/p-14175-5-34-x…r-aluminum.aspx
Z. Ray