Category: Engine Issues

Which wire to connect the Holley EFI ?

I am doing the final wiring on the Holley EFI on my 1970 Gran Coupe 340 stock wiring . which wire is the best and at which point to connect the pink wire (Needs to be a clean 12v and 12v while cranking) Which wire and what color is it??
Thanks For the …

EGR delete 70 Challenger

Looking for some input on deleting the EGR valve on a 383 challenger? Good, bad, and how?

Carburator too rich

383 with Holley 4150 750 MSD ignition, running her on the street in break in stage getting plugs foul,, best plugs? and best way to lean the Holley out a bit Thanks

RTV on Valve Cover Gaskets

Does anyone use RTV on their cork valve cover gaskets? If so, do you use RTV on the valve cover and the engine surface? I have aluminum valve covers and I can’t get them to seal. I’m using quality cork gaskets and I don’t over tighten the bolts. Are…

PVC with LOW idle vacuum

I am looking for a pvc valve that will work on my 383 that has 6" hg at idle, engine vacumm is max 12"hg at highway speed. I currently have a stock pvc valve but its really messing up my idle due to the constant "vacumm leak", it wo…

Timing Chain Tensioner with Double Roller Chain

I bought a CLO 9-5387 tensioner I intended to use on a SB I’m building but have seen various thoughts on whether they can be used with a double roller chain.
Anyone have an opinion one way or the other? I believe the manufacturer says "not compati…

Is this correct? distributor install…

I verified that i was at correct TDC, by looking through the exhaust port. When i turn the engine crankshaft about 90 degrees past TDC, the exhaust valve starts to open. I have the balancer mark right at the mark, and the distributor rotor pointing rig…