Date Coded Holley 3370

[Paul A.]

Happy New Year all. Well I’m one step closer on getting another date coded piece added. I was fortune enough to find a Holley 3370 dated code of 5B4 for my 66 BB with a birthday of 2/66. Placed some WTB adds on the NCRS and the CF boards and found an original, restored 3370. I removed the 770 that was current and installed the new carb. Added a new fuel line and a divorced choke set up, adjusted the usual idle mixture screws, float levels and curb idle speed. The car runs really nice with the orig carb on the stock intake of course. I must add that I purchased the carb from a member here, Mr. Pancho Thompson. He was one of the most honest, helpful, stood behind his word gent I had the good fortune of dealing with. I would highly recommend him. Thank you Pancho!

[Robert P.]

Re: Date Coded Holley 3370

I will second that about Poncho first class person to do business with
Bob Peckham 66450

[Pancho T.]

Re: Date Coded Holley 3370

Thanks guys

[Peter M.]

Re: Date Coded Holley 3370

Paul, Check your aim. I think the throttle rod is reversed. I think the swivel should be at the firewall.
Kind regards

[Paul A.]

Re: Date Coded Holley 3370

Paul, Check your aim. I think the throttle rod is reversed. I think the swivel should be at the firewall.
Kind regards

[Owen L.]

Re: Date Coded Holley 3370

Thanks for that Pete, I thought the wrong year throttle rod was used. I’ll try the reverse as you said.

I drove my '67 for nearly 35 years with a reversed accelerator rod! It was installed that way when I got it and I only noticed something was funky about 5 years ago when I installed a repro Holley on it and was checking the AIM for rod bushings, spring attachment points, etc..

[Paul A.]

Re: Date Coded Holley 3370

9E8D5A0F-81AB-480F-9CDC-2EC6A5D788B1.jpegReversed the accelerator rod. It a bit out of shape though. Needs reshape and spray paint. Also bushing on accelerator lever a bit shot. What does this marking mean?

[Ronald L.]

Re: Date Coded Holley 3370

Post a larger pic, cant open it up, however if original will be the supplier identification

[Michael M.]

Re: Date Coded Holley 3370

Manufactures stamped logo like Ronald said.

[Paul A.]

Re: Date Coded Holley 3370

Post a larger pic, cant open it up, however if original will be the supplier identification

5671DDF6-7BE8-4885-916A-B15FC6D5861E.jpeg

[Mike B.]

Re: Date Coded Holley 3370

Paul,

I've been away from this forum for a while. Just saw this. Nice looking 3370. I'll have to check my accelerator rod for this stamp.

I've read in the past that this "MW" stamp denotes the "Mid Western" company. You'll spot it in a few places here and there. One place is the long straight left and right headlight to grill support rods. Another place that you'll spot this logo is on '66-'67 big block air conditioning compressor support rods. I've attached a shot of mine.

Mike

Mike's '66 Brace Bar (3).jpg

[Michael M.]

Re: Date Coded Holley 3370

I have seen that manufactures logo on shifter rods.

[Paul A.]

Re: Date Coded Holley 3370

Paul,

I've been away from this forum for a while. Just saw this. Nice looking 3370. I'll have to check my accelerator rod for this stamp.

I've read in the past that this "MW" stamp denotes the "Mid Western" company. You'll spot it in a few places here and there. One place is the long straight left and right headlight to grill support rods. Another place that you'll spot this logo is on '66-'67 big block air conditioning compressor support rods. I've attached a shot of mine.

Mike

[ATTACH=CONFIG]109954[/ATTACH]

Mike, I was looking at it upside down....does it matter, lol. I now see the MW. Got the accelerator rod reinstalled the correct way. It was bent a out of shape a bit, so I placed in the vice and gently straightened. Then repainted silver. Came out nice. I was gonna order a new one however that MW stamp would not be on an aftermarket part I’m sure. Does it matter judgement wise? Thanks again to all!