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Here it is: where should the lifter on a hydraulic flat tappet cam sit on the lobe? Does it rest dead center of the lobe or toward the timing chain side of the lobe? I ask this because of what I’m seeing on my car which is the lifter only riding on the front half of the cam lobe as the engine...

I’ve got a Lunati Bracketmaster II cam installed in my 400. As per the specs on the cam card, it calls for a valve spring with an installed height of 1.820 @ 120lbs open load. I’ve got a set of PAC springs Hot Rod 1900 that I want to use that call for a 1.880 installed height @ 98lbs open load...

73 RR, 400ci 4spd. When attempting to find out what the timing was, I discovered that at TDC- rotor pointed to #1 position on the cap, piston stop verifying piston location at the top of cylinder and this is happening immediately following #1 cylinder intake valve closing and exhaust valve...

Is there any reason to run an RB dizzy in a B block other than shaft height for valve cover clearance? Any performance gains from the swap? Thanks!

Here is the down and dirty: Shifted the car from 3rd to 4th, loud bang, clutch pedal stays on the floor. Towed the car home, found the throw out bearing had exploded. Pull the car apart, found quite a bit of damage- worn out clutch, front bearing seal retainer was broken completely...

Have to replace the clutch on my 73 road runner. Street use mostly, would like to occasionally run it down the track. Suggestions please! Thanks! Mostly stock 400 ci engine and trans. Car has Edlebrock intake, exhaust headers.