Vintage Road Racing Association

Trying to get this finished for Mosport. Its mostly 83, 85, 85 bits.

What class would it run in? I assume P4 Heavy with a bump to P5 Heavy or Junior Open?

Thanks in Advance

You are correct. P4 F1 is its native class and the bump up is P5 F1. Timothy will determine if it goes in Open Junior or Senior.

Thanks Michael.

I don't know why its a 535 as it basically 3 x 172.5 cylinders so in theory its 520.5. But that's what they call it