I think the best benefit of aluminum is weight. I'm not sure of the added weight of Filon,but have been told by a manufacturer that gelcoat fiberglas adds 500-600# per side depending on lenth. Something to consider. Weight = fewer MPG.
__________________
Klamath Falls, Oregon:The Right Side Of The Cascades!
1990 Rexhall Airex 29I,Ford 460cid,Gear Vendor,Granning Tag Axel
'87 GMC Suburban 2500 W/454 CID
|