340 SHP question

[William C.]

Re: 340 SHP question

Thanks Bill, right now I am running a single wire electronic points set up. I wonder if a new/modern distributor cap with with a new rotor would make a difference?
I will take this journey one step at a time and see if I find success . I sure hope I don't have a wiped out cam.

I Can't comment as all my experience is with high-performance Point and standard ignitions systems, I'm of the old-fashoned "tricks are for Kids" thought pattern. I can work on a points car if it fails, and can look at the points to assess their condition. I can't do either with a "black Box" and I don't trust them as far as I can throw one (which is getting shorter every year as I age...)

[Loren L.]

Re: 340 SHP question

Change out your fouled spark plugs.

[John D.]

Re: 340 SHP question

Jim, If you are using NOS or SR Delco Remy points and condenser you might want to replace those with NAPA ones. John

[Jim C.]

Re: 340 SHP question

Secondaries always looked fully opened when pedal depressed in the garage . Today I disconnected both left and right choke actuation rods , the throttle body and secondary linkage from the choke then took it out for a run.
WOW! It wound right up to 5000 rpm like it never had. I chickened out at 5000 grand and lifted.
Now I have a 327 solid lifter engine. Amazing sound !


thanks to all who posted suggestions for me. I will follow up on all as well. I even found a 60's vintage rotor cap on eBay!
Now I have to figure the choke / secondary linkage fix.

Happy Fathers Day to all!

[Timothy B.]

Re: 340 SHP question

Jim,

Get a 1963 Corvette service manual and you will find a section outlining in detail the Carter AFB carburetor adjustments including the choke secondary lock out which sounds like the problem from your description.