pretty bad. Bottom line is that MAF costs more and doesn't work as well at WOT... compared to well tuned speed-density systems. The question to ask is does the esier tuning outweigh its other disadvantages? -- Jonathan R. Lusky -- lusky at knuth.mtsu.edu "Turbos are nice but I'd rather be blown!" 68 Camaro Convertible - 350 / TH350 80 Toyota Celica - 20R / 5spd