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I am building my first mod motor and I have a question about the main bearing clearance. Its a 99 cobra, stock crank, aluminum block and I am using clevite main bearings with a calico coating. my question is that with the coating the main bearing clearance is only .0015. I measured the new...

I have a t-45 in a 99 cobra and 1st through 3rd sounds like I have a supercharger. 4 and 5th are fine. the car shifts fine and the noise dosnt get louder the faster I drive, it is very loud at parking lot speeds or the return lane at the strip. it makes the noise decelerating also.

I have a nx 150 shot on my 99 cobra and I have ran 4 bottle through the car, Saturday I sprayed it and had a major backfire through the intake. It broke the hood intake pipe and blew the freeze plugs out of the intake manifold. Fuel pressure is good bottle pressure was good and both solenoids...

I am wanting opinions on the Brian tooley racing valve springs. Have any of you guys ran them and what is your experience with them.