QUESTION 1

I am trying to build a 1980 Camaro with a 400 SB and a 6-71 Weiand blower. I would like to run a single Holley Double Pumper, but I'm a little lost on how the supercharger will affect the fuel system and compression, how much boost I'll get, or how much I'll need.

I'm not cutting any corners on this build-up. If I can get it forged, then it will be. I'll run ARP's stud kit. But after that, I'm not sure what's going to hold up and what will fail. I would like to run this off of pump gas and drive the car on the street, but be able to smoke the new 2003 SVT Cobra!

Any help you might have I would be very grateful. When I make it on the cover of Hot Rod mag, I'll give you guys proper credit for all the help. lol

Brad Conklin

Brad,

This is a very good combination that you are look at an here are my recommendations.

- two 750 Double Pumper carbs on top of that 6-71 blower

- 7.5 to 1 compression (static)

- Boost is directly related to cam and cylinder heads, so get a flat tappel blower carm.

- For pump gas, under driver the blower 10 percent

This combination has the potential of 600-plus horsepower on pump gas.

Scott

QUESTION 2

I own a Holden Torana. The car is made in Australia and has a similar engine to a 1970's Buick V8 with different heads and a shorter stoke. These engines have very bad cam wear. How can I keep my new cam (third cam) in good condition? I have used a billet camshaft and Chevy lifters.

Steven Kirkilis
AUSTRALIA

Steven,

To the best of my knowledge, most Buick engines had oiling problems. This is due mostly to the fact that the oil pump is located in the timing cover, which is cast aluminum, at the front of the engine and the oil pick-up is located in the oil pan at the back.

The cast aluminum cover pump housing, has a tendency to wear, causing a loss of oil pressure.

When you mentioned third cam, my question is, where did all the debris from the other two worn cams go?

Scott

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