To get a TBSS intake manifold to clear our 99 Dakota cowl with LS engine swap some trimming was required. I wanted to keep the air inlet to the HVAC like it was original with nothing from the engine compartment coming inside the cab. We used West Epoxy with 1.5 oz cloth as the first layer then three 9 oz layers on top. The 1.5 oz cloth worked pretty good keeping the resin from running right through. The plastic sheet came right of the glass after it cured and the foam held it up to set the clearance. Pleased how it turned out and I was fortunate the wiper linkage cleared too.