[drathaar907]

454 th350 (shift kit) 3inch dual (no crossover,no header) 3.73 posi - have

Adding Edelbrock oval air gap intake, looking at a speed demon 750 cfm carb - or should I go smaller? Cam with less than 240 duration @ .050.

 

[Davec43]

What are you running now for a tc something stock?

 

[drathaar907]

I believe it is stock T/C.

 

[mr 4 speed]

A 750 carb should be the smallest carb to consider for a 454..even a mild one will appreciate a 750
A good all around convertor for a stock to mild 454 is the B+M 2400 Holeshot.
I have used this convertor behind a stock 454 and with my combo..works well.

 

[drathaar907]

If I keep the stall stock, and make the modifications I am looking at what difference will there be without the stall. I have a friend who has offered to give me a 3000 stall, but I am not keen on pulling my engine if I don't need to?

 

[dreis454]

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Go with a Holley 750 Vac. sec.

 

[Davec43]

Stall converters probably the most over looked performance piece out there. I'd change it just for the reasurance you know it won't ballon or whatever and ruin your engine