No flame, just bad info...
Originally posted by DR.BOOSTER
I am not trying to flame here but
1) How come the new heads were not designed to flow into the 300 + cfm arena? Why not do a new ground up head design with a special intake mani that flow some impressive numbers? I find it odd that there was a bad ass block made from scratch to run 8's and 9's for $4k and then a set of heads that sort of follow the heard and flow 260 ported.
.......I would pay $3k for a set of GN heads and custom intake that flow over 300cfm out of the box, and 4K if it would go 330+ ported. ............................
I reason I hesistated to post flow numbers is because of mis-information like this.
First of all, tell me your experience in 7, 8, 9 and 10 sec. turbo Buick motors and builds? If you had some, you would NOT have posted what you did. Guess you do not know a 280 cfm flow on an alum head will take you into the 8's with the proper build?
Ever hear of TSO class cars running 8's with Champion heads? Or how about a TA motor [with TA heads] developing 1180 HP?
Then to compare a Pontiac head/flow with a turbo Buick illustrates you missed the TURBO part.
Go with your Pontiac and carb, then get your butt handed to you by a turbo Buick with heads flowing half of them.
Bigger flow numbers, Dave said it real well. That is why Ruggles and Buick Motorsports went to Stage heads, to get the flow [HP] needed to compete with a carb on the round track.
Let's go back to TSO class to help verify my info. The fast cars in this class run mid-8's. Some have aftermarket heads, some use Stage heads. The limiting factor is the 88 mid-frame turbo, NOT the heads. Super 16 cars, with Stage heads and massive or twin turbos, run into the 7's. We have done stage heads that do flow 330 cfm, but most racers cannot afford to take advantage of this to provide the expenses build, maintain and campaign such a beast.
To validate our data further, we have flowed heads from Dutweiller and Champion and have compared the results from each. Our results are within 1% of their results. Unless there is a good basis for comparison, flow numbers mean nothing but sales propaganda.
When we do an engine build, we find out the customer's goals for power, use and budget. It is from here that we select or recommend parts like heads, cam etc. We do not start with head flow numbers and build from them.
As far as I know, no one has slapped a set on a 109, right??? 
