Again thanks for the help with the part ID.

I've looked all over the internet and I can find anything that'll tell me the redline on a stock 20R engine? I don't know if other trucks come with tachs, but mine doesn't have one (Stock 1980 Toy 4x4 w/manual 4 speed). I know the max HP is at 4800rpm, and the heads have enough flow to support 6500rpm, but I seriously doubt that's red line on this old motor. I ask so I can set my Street Fire Ignition about 500 RPM below redline so I should never go over, plus install a digital tach.

Thanks in adavnce!

Last edited by Sparsky; 09/28/10 04:42 AM.