Not so much a clone Hemi Dart

[68 HEMI GTS]

I have to agree with you. My Barton I port matched and spent time at the plenum rounding the short radius’s. Was sceptical running the 1250 but it handled it ok. My best was with 32 degrees, very minimal drop from 34 degrees, 1 or 2 HP only. All my runs were also running stinky 91 octane. Edit - forgot to mention that we tired a few different spacers and the shear plate was a game changer. It picked up I think it was about 15HP. I said, leave that shear plate right where it is, it’s coming with me.

You happen to have the part number for that sheer plate?

 

[Malex]

You happen to have the part number for that sheer plate?

I don’t have the part number, there’s no markings on it but I’ve got a picture.

It’s 1/2” thick. The 1250 worked best with 93 main and .028 high speed jets @ 32 degrees. It’s surprising to see what spacers do. This reversion or shear plate worked like a damn on the Barton while a super sucker spacer sent it the other way.

I made a pass with the 505 in the Plymouth with this shear plate on top of a Super Victor intake, it didn’t change the time slip from the previous pass with a 4-hole 1/2” wood spacer. But having said that the air was getting worse so perhaps there was a touch.
Hope this helps.

 

[Jet]

Great numbers. Good plan to dial in with the dominator and then switch to the crossram