I wouldn't think that the .025 difference in diameter would affect anything.  If you are planning on keeping the engine forever then go with the larger.  Cometic claims that they are reuseable so they would work with a future clean up boring.  They also have a head gasket kit that has intake gaskets etc.  Really not much more than the head gaskets themselves plus the other gaskets needed.

For those who may be interested, I just posted a pair of Stage 2 Edelbrocks in the for sale section.

The truck bell should have a (T) in the numbers on the bell like C6TE.

Thanks for the input Brent.  By over centering do you mean that ideal release point on the pedal needs to be closer to the floor or just as the pedal is depressed?  My 70 year old leg needs the easiest clutch possible.                                                                                                                                                                                        

I ran a #2 ground cable from the battery to the rear frame rail and also one from the front rail to the engine.  Turns over nicely even when hot.  Can't have too many grounds on something pulling that many amps.  Also have a single puller electric fan with shroud that covers almost the entire radiator within the shroud.  Cools good except extended periods of red lights but cools back down when moving.  Each vehicle and engine is different on cooling needs so you will have to experiment if it runs too hot.  Example - same car ran hotter with a 428CJ than a 427 Side Oiler.

With all the talk about stand height and geometry, what is the best way to determine if anything needs moving?  Simple please for us back yard builders.

This is probably for our FE vendors or someone with knowledge of Gear Vendors Company.  On their home page there is a tab for applications and after selecting 4,5,6 speed manual transmissions their list comes up.  There is a listing for Toploader 17" tail shaft.  The part number is 189723 with the price as $3195.00.  But it says to contact them before purchase.  I emailed them and told them the application.  They emailed me back and said that they don't make one for this transmission and have no plans to do so in the future.  Well maybe I got a kid who sold underwear before the layoffs.  Then I called them and got the same response and was told that I would have to switch out the main shaft to a 14" before they can help me.  Not happening Batman!  Why would a company publish application information, assign it a part number and not produce the part?  If anybody has an (in) with Gear Vendors I would like an answer to that question.  There were many more Toploaders produced with the long 17" tail shaft.

Currently running a Mallory Unilite non vacuum advance distributor.  The full advance is too late and I need to know the spring part numbers to get it in the right RPM.  Thanks.