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Forum: Cigarette

05-08-2024, 03:18 PM

Replies: 193

Operation 87 Cafe rescue

Views: 29,204

Posted By Tartilla

Great to hear. I prefer running a bit more RPM on...

Great to hear. I prefer running a bit more RPM on the top end as per your plan. Easier out of the hole, and not working hard on the cruise RPM.

The 317 Promaxx heads really seem to be working out.

Forum: Cigarette

05-07-2024, 09:23 PM

Replies: 193

Operation 87 Cafe rescue

Views: 29,204

Posted By Tartilla

What RPM are you seeing at 75 with the 24p? ...

What RPM are you seeing at 75 with the 24p?

What is your target RPM range?

The 317s seem to be working out well.

How is the cruise RPM and vacuum?

Thanks, Art

Forum: Cigarette

04-10-2024, 02:57 AM

Replies: 193

Operation 87 Cafe rescue

Views: 29,204

Posted By Tartilla

Eric Weingartner YT Channel has some great vids...

Eric Weingartner YT Channel has some great vids on the 317 Promaxx heads. He's a head porter and flows them etc. He does dyno testing and puts the 290 and 317 head to head. Pun intended.

540 dyno...

Forum: Cigarette

04-09-2024, 10:10 PM

Replies: 193

Operation 87 Cafe rescue

Views: 29,204

Posted By Tartilla

Those ProMaxx heads look like the 317s? Raised...

Those ProMaxx heads look like the 317s? Raised exh ports 3/8". These flow really well on the exh.

Griff is spot on. A worked over 850 would be your best bet if you wanted more. But the 800s are...

Forum: Cigarette

04-09-2024, 08:13 PM

Replies: 193

Operation 87 Cafe rescue

Views: 29,204

Posted By Tartilla

+1 for the red bilge. Doesn't show the blood from...

+1 for the red bilge. Doesn't show the blood from the fight and the clamps!

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