Found a small coolant leak presumedly from a leaking intake manifold gasket. 98 Montana w/approx 93K miles. GM released a 'new design' gasket with'improved sealing qualities'. Felpro lists an intake manifold gasket set for the 3.4l engine. Anyone have exprience with Felpro gaskets for this engine.? I've successfully used Felpro gaskets in other applications but since the 3.4 engine is prone to intake leaks, I'd like to not have to do the job again.