Posted by John McNerney [172.70.110.231] on Saturday, October 16, 2021 at 16:29:40 :
In Reply to: Re: M37 Spitfire Head 230/265? posted by John McNerney [172.70.110.241] on Friday, October 15, 2021 at 07:31:17 :
Mainly interested in whether there is a performance difference. Is the splitfire a higher compression head?