1.42 Under!

Andrew Hill · 09-04-2017, 02:56 PM

The 1990 and 1991 305/210 and 305/230 manual trans/stock head were changed from 235 to 253 HP for GT FWD on 8/29/17 according to the NHRA stock car classification guides. The 1987 305/215 is still 235 with manual trans and stock head. The 1988/89 are 245 from a previous hit. It looks like the 87 combo was mistakenly adjusted to 253 also then back to 235 as there are some differences in the chamber size from the 90/91 I believe.

09-04-2017, 02:56 PM	#36
Andrew Hill Senior Member Join Date: Mar 2008 Location: Chicago, IL Posts: 702 Likes: 447 Liked 174 Times in 39 Posts	Re: 1.42 Under! The 1990 and 1991 305/210 and 305/230 manual trans/stock head were changed from 235 to 253 HP for GT FWD on 8/29/17 according to the NHRA stock car classification guides. The 1987 305/215 is still 235 with manual trans and stock head. The 1988/89 are 245 from a previous hit. It looks like the 87 combo was mistakenly adjusted to 253 also then back to 235 as there are some differences in the chamber size from the 90/91 I believe. __________________ 3207 D/SA, C/ED