From Barry R"s comment: are any Timing covers hard to find or just nice-looking aftermarket ones?
I've got a box full of stock TC covers.
Richard >>> FERoadster

Brent: If Jack Tindel does not come up with a set, checked and I've got 3 sets here with the knockouts still intact.
Richard >>> FERoadster

I've got Jay's book and watched Joel's comments about 6X2 and 8X2 intake Mine is a Edel F68 with 6 Stromberg WW carbs.
Mine flow about 20% more than those in Jay's test, Quite sure that those were positive linkage.
Wondering about positive vs progressive linkage. Getting ready to spend some money for linkage.
My 2 options are Ford 3X2 progressive and straight positive. I've got one of each and can duplicate another if I need. 
Balancing carbs can be an issue with 6 to do.
The fellow I'm sending my Grant Spaulding to (Advanceddistributors in Minn) said he'd advise positive since looking at the runners he would be worried about A/F mix in the outer cylinders in street driving.
Your thoughts:  positive or progressive linkage?
2800# car 4.11 wide ratio 4 spd 427 with a 428 crank Edel. heads flowing 300+ on the intake. Street driven only.
Richard >>> FERoadster

Rory:  I bought a set of RaceTec's from Brent within the past year off a dyno build. +030 with new rings. My 428 block is already + .030 and thought I'd use them. I paid around $500 + shipping (USD) - (Pistons and Rings). Might consider selling them since I might sell the engine. Not planning to make much of a profit since rebuilding the shortblock can be costly and I could avoid the expense.
Not really anxious to sell but, I could use the money and sell the 428 as well.  The 428 has very few miles since the rebuild. Pulled it running from a 1974 F350 dually fellow was putting a 460 into. Figured I'd just put the pistons in with a slight hone and hope for the best.
Getting ready to downsize the numerous FE blocks I have.
Richard >>> Roadster

Correction: Checked the pistons and they are AutoTec A4123F, Rings still in the box are Total Seal 1/16 1/16 3/32. Includes circlips.
See Brent's post in Vendors Classified about the pistons. (Jan. 2022)

Heo and Bob: Thanks, now I can get the dimensions I need.
I do have a boxed Model A frame to measure fit.
Richard

My 427 CO is going into a early 1960's car and I 'm wondering about using a Grant-Spaulding distributor/
Do know it's age/look appropriate for the time frame but what should be the timing be? 14 degree's initial and 38 at what RPM?
Street driven car prob 3200# 3,90 gearing 4 spd. WR toploader CI long tube headers.
Sending the distributor to AdvancedDistributer's in Minn. for a check and recurve.
Oregon Cams 600-608 lift I and E.  Edel. Heads that flow 300+ at .600 lift. Large 6X2 Carb intake.
So what curve is best for my car?
Richard >>> FERoadster

Not really a Ford distributor rather a Grant Spaulding for a FE. It's hard to find someone who will check it out so I called Jeff at Advanced Distributor. He said he hasn't worked on a G-S but would like to take a look at it. He did say no Ford distributors.
I talked with him about 3 weeks ago and have since picked up a G-S manual that discusses the setup and rebuild process.
Hope to send the manual and distributor to him this week.
Richard >>> FERoadster

Al Thought I do post info I am aware of, most times I'm asking about the "what If" questions i need an answer to.
This is by best source for performance options.
Richard >>> FERoadster