QFT parts.

[mach1stang]

Hey guys,
I pulled my trucks carb apart the other day to clean it up and replace the gaskets. I have a pair of carb shop speed blocks off of another carb I have. I was going to put those on it, long story short the head broke off the jet deal (not sure what you call them) so I threw that idea out. So I want to upgrade my carb without having to sell the motor to fund it. I have been considering using the QFT base, and metering blocks but I want to be sure there worth the skittles before I order them.
Has anybody had any luck with these parts or should I look some place else?

[My427stang]

QFT is good stuff, but I prefer BLP parts.

I have talked to both companies, and Bo Laws of BLP is clearly one of the sharpest guys around when it comes to matching carb parts to intended use.

http://www.blp.com/

It may not be cheaper, but he is very good.

If you want QFT, give this guy a shot, he is a friend of mine and deals in QFT. He is also a Tremec dealer and can get some very good deals on drivetrain stuff from many manufacturers.

http://www.b2motorsportsllc.com/

[mach1stang]

Thanks for the links! He has some very nice stuff.

I have another question now that I am basically building a whole new carb. The truck I am working is just a play truck it’s got a 400 small block with .30 over probe flat top pistons, scat rods and crank, dart iron eagles I think they are the 180CC’s (I am not sure on what model they are or what combustion chamber) they also have those pain in the rear angled plugs. The carb I am pulling off of it is a double pumper 800. It does good I changed the jets around and it made a huge difference in it but it still has a slight stutter step when it is under load and stomp the throttle, and I have my suspicions with the carb being a little bit of over kill. Should I consider building a 750 with good parts or step the parts in the 800 and back the jets down?

[MonzaRacer]

If your street driving and get the bog opemni ng the cecondaries its got either too much accel pump cam or to large a shooter.
See in a drag car the converter(ie loose) and "wheel spin" lets the DP "work".
If its street driven a well set up vac secondary will serve you well just get adjustable secondary conversion and a spring kit.